What is the recent trend in the Canine Explosives Detection Program?

• A. Increased use of K-9s at cargo facilities
• B. Decreased use at checkpoints and increased use in cargo
• C. Abolished K-9 programs across all airports
• D. Use of K-9 at checkpoints and less in cargo

Answer: (D)

The main idea here is how explosive-detection dogs are allocated to maximize security. The trend is to use K-9s more at checkpoints, where they can rapidly screen large numbers of passengers and carry-on items, and to reduce their presence in cargo areas. This checkpoint emphasis provides immediate detection and deterrence at the point of entry, which is a high-traffic, high-risk target, while cargo screening can rely on other methods such as X-ray screening and automated scanners. So, the option that fits best is a shift toward checkpoint use with less emphasis on cargo. The other choices imply more dogs in cargo, abolition, or the opposite trend, which don’t align with this security posture.